EP 1265304 A2 20021211 - Cooling water recirculation in a fuel cell power plant
Title (en)
Cooling water recirculation in a fuel cell power plant
Title (de)
Kühlwasserrückführung in einem Brennstoffzellenkraftwerk
Title (fr)
Récirculation de l'eau de refroidissement dans une installation de production d'énergie à piles à combustible
Publication
Application
Priority
JP 2001159333 A 20010528
Abstract (en)
A water pump (4) recirculates water from a water tank (3) in a heat exchanger (2) and a fuel cell stack (1) of a fuel cell power plant via a recirculation passage (5) A water temperature sensor (13) detects a water temperature in the recirculation passage (5). When the water temperature is lower than a predetermined temperature, a controller (16) recirculates water to the water recirculation passage (5) by operating a water pump (4) in order to prevent freezing of water. It is preferred that a heater (15) is provided to heat the water recirculating in the recirculation passage (5). <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
H01M 8/04029 (2013.01 - EP US); Y02E 60/50 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1265304 A2 20021211; EP 1265304 A3 20030730; EP 1265304 B1 20100630; DE 60236828 D1 20100812; JP 2002352835 A 20021206; JP 3460703 B2 20031027; US 2002177022 A1 20021128; US 6964820 B2 20051115
DOCDB simple family (application)
EP 02007650 A 20020404; DE 60236828 T 20020404; JP 2001159333 A 20010528; US 15512202 A 20020528